Dust collecting device for safety evaluation of chemical workshop

Abstract

The utility model relates to the technical field of chemical safety equipment, and provides a dust collecting device for safety evaluation of a chemical workshop. The device solves the problems that an existing cloth bag fixing mode is difficult to replace, dust blockage affects efficiency, and the service life is shortened due to impurity abrasion. The technical scheme comprises a shell, a storage box and a collection mechanism. A cloth bag in the collecting mechanism is adhered and fixed through a hook face and a loop face of a hook-and-loop fastener, and disassembly and assembly are simplified. The flapping mechanism is composed of a pull rod, a flapping rod and a spring and flaps the cloth bag regularly to prevent dust accumulation. A collecting hopper is arranged at the top of the shell, large-particle impurities are filtered through an internal filter screen, and cloth bag burdens are relieved. The device monitors the interior through an observation window, and a storage box facilitates dust cleaning. A tearing strip is arranged at the opening of the cloth bag, so that quick disassembly is facilitated. The cloth bag is convenient to replace, blockage and abrasion are reduced, the service life is prolonged, and the maintenance cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of chemical safety equipment technology, and in particular to a dust collection device for safety assessment in chemical workshops. Background Technology

[0002] Dust collection is a common requirement during safety assessments in chemical workshops. In existing systems, filter bags are usually fixed with bolts or welding. Replacement requires disassembling multiple parts, which is time-consuming and labor-intensive. Dust easily accumulates on the inner wall of the filter bag, causing blockage and affecting the collection effect. Impurities directly enter the filter bag, increasing wear and shortening its service life. These problems result in high maintenance costs, low collection efficiency, and difficulty in meeting the requirements of continuous operation. Utility Model Content

[0003] The purpose of this utility model is to solve the problems of existing technologies where filter bags are usually fixed by bolts or welding, requiring the disassembly of multiple parts for replacement, which is time-consuming and labor-intensive. Dust easily accumulates on the inner wall of the filter bag, causing blockage and affecting the collection effect. Impurities directly enter the filter bag, increasing wear and shortening its service life. The proposed dust collection device is for safety evaluation in chemical workshops.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A dust collection device for safety assessment in a chemical workshop includes an outer shell with observation windows on both the front and rear sides. A storage box for storing dust is fixedly connected to the bottom of the outer shell. A base plate is fixedly connected to the bottom of the storage box, and a controller is fixedly connected to one side. Support columns and anti-slip pads are fixedly connected to the four corners of the bottom of the base plate, and the four edges of the base plate are all rounded. A collection mechanism for collecting dust is provided on the outer shell, and a beating mechanism for beating the collection mechanism is also provided on the outer shell.

[0006] In one possible design, the collection mechanism includes a hook and loop fastener, a fabric bag, two side tubes, two suction fans, and two second filters. The two side tubes are respectively obliquely fixed on both sides of the same housing and connected to the housing. The two suction fans are respectively fixed to the inner walls of the two side tubes by bolts. The two second filters are respectively fixed to one end of the two side tubes by bolts to protect the suction fans. The hook and loop fastener is fixed to the top inner wall of the housing. The hook and loop fastener are adhered to the hook and loop fastener. The hook and loop fastener is fixed at the outer edge of the opening of the fabric bag for collecting dust.

[0007] In one possible design, the tapping mechanism includes two pull rods, two tapping rods, two connecting frames, two connecting rings, and two connecting springs. The two connecting frames are U-shaped and are fixedly mounted on both sides of the same outer casing. The two pull rods are fixedly mounted on one end of the two tapping rods. The other ends of the two tapping rods slide through the connecting frames and the outer casing and are fixedly connected to rubber pads. The other ends of the two tapping rods extend to both sides of the same cloth bag. The two connecting rings are fixedly sleeved on the two tapping rods. The two connecting springs are sleeved on the two tapping rods and abut against the connecting rings and connecting frames respectively through spring seats.

[0008] In one possible design, a connecting ring is fitted on the top outer side of the outer casing. Threaded holes are provided on both the front and rear sides of the connecting ring. Fixed posts are threadedly connected to the inner walls of both threaded holes. A rotating handle is fixedly connected to one end of each of the two fixed posts, and the other end is tightly attached to the outer side of the outer casing. A collection hopper for collecting dust is fixedly connected to the top of the connecting ring. A filter screen for reducing the burden on the filter bag is fixedly installed on the inner wall of the collection hopper by bolts.

[0009] In one possible design, the front side of the storage box is fixedly provided with a lid for closing by a retaining ring and a retaining block, a sealing ring for sealing is provided between the lid and the storage box, a handle for holding is fixedly connected to the front side of the lid, and a triangular block is fixedly connected to the bottom inner wall of the storage box to facilitate the collection of dust falling from the cloth bag.

[0010] In one possible design, two tear strips are fixedly provided at the top opening of the bag to facilitate the disassembly and assembly of the bag.

[0011] In this application, when in use, the staff places the device in a suitable location in the chemical workshop, connects it to the external power supply, and starts the suction fan through the PLC controller. Since the two side cylinders are respectively tilted and fixed on both sides of the outer shell and connected to the outer shell, after the suction fan is started, a negative pressure will be formed inside the outer shell, which will suck the surrounding dust into the device. The dust first passes through the collection hopper, and the filter screen on the inner wall of the collection hopper will filter out larger particles of impurities, reducing the burden on the subsequent cloth bag. After that, the dust enters the outer shell and is collected by the cloth bag that is fixed to the inner wall of the top of the outer shell by the hook and loop sides of the Velcro.

[0012] By observing the inside of the outer casing through the observation window, when a lot of dust adheres to the cloth bag, affecting the collection efficiency, the staff can periodically pull the lever. Pulling the lever causes the beating rod to move in the opposite direction of the cloth bag, while stretching the connecting spring. When the lever is released, the connecting spring returns to its original state, and its elasticity causes the beating rod to quickly return to its original position and beat the cloth bag. The rubber pad on the beating rod can reduce the damage to the cloth bag during beating, causing the dust adhering to the inner wall of the cloth bag to fall off and preventing the cloth bag from clogging. The triangular block on the inner wall of the bottom of the storage box will concentrate any extra dust that falls off to one side of the storage box.

[0013] When it is necessary to clean the dust in the storage box, the staff can separate the clips and blocks, open the box lid with the handle, and pour out the dust. If the cloth bag needs to be replaced, the staff can use the tear strip fixed at the top opening of the cloth bag to quickly tear the cloth bag off the Velcro, and then install the new cloth bag.

[0014] The beneficial effects of this utility model are as follows:

[0015] In this utility model, a detachable connection method of hook and loop fasteners is adopted, which facilitates the installation and replacement of the bag. The tear strip set at the top opening of the bag further simplifies the disassembly operation and saves time and manpower.

[0016] The design of the tapping mechanism allows staff to regularly tap the bags, causing the dust adhering to them to fall off. This avoids the problem of excessive dust affecting collection efficiency. The connecting spring ensures that the tapping rod can return to its original position after tapping, preparing for the next tapping and improving the effectiveness of the tapping cleaning.

[0017] The filter screen on the inner wall of the collection hopper can filter out larger particles of impurities, reducing the amount of impurities entering the filter bag, reducing the burden on the filter bag, extending the service life of the filter bag, and reducing the cost of use. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0019] Figure 2 This is a cross-sectional view of the collection structure of this utility model;

[0020] Figure 3 This is a cross-sectional view of the striking structure of this utility model;

[0021] Figure 4 This is a partial exploded view of the structure of this utility model.

[0022] In the diagram: 1. Outer shell; 2. Observation window; 3. Connecting ring one; 4. Fixing post; 5. Collection hopper; 6. Filter screen one; 7. Connecting frame; 8. Side cylinder; 9. Storage box; 10. Base plate; 11. Cloth bag; 12. Velcro side; 13. Velcro hook side; 14. Tear strip; 15. Suction fan; 16. Filter screen two; 17. Beating rod; 18. Pulling rod; 19. Connecting ring two; 20. Connecting spring; 21. Triangular block; 22. Handle; 23. Box lid. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] In one embodiment: Refer to Figures 1-4 The collection device includes an outer shell 1. Observation windows 2 are opened on the front and rear sides of the outer shell 1 to facilitate staff to check the internal situation at any time. A storage box 9 is fixedly connected to the bottom of the outer shell 1 to store the dust that falls when the cloth bag 11 collects dust. A base plate 10 is fixed to the bottom of the storage box 9, and a controller is fixedly connected to one side of the storage box 9 to control the operation of the device. Support columns and anti-slip pads are fixed at the four corners of the bottom of the base plate 10 to ensure the stability of the device. The four corners of the base plate 10 are set to be rounded to reduce the risk of damage during collision. The outer shell 1 is equipped with a collection mechanism and a beating mechanism, which are used for dust collection and beating operation of the collection mechanism, respectively.

[0025] The collection mechanism specifically includes a hook and loop fastener 13, a loop fastener 12, a cloth bag 11, two side tubes 8, two suction fans 15, and two filter screens 16. The two side tubes 8 are respectively inclined and fixed to both sides of the outer casing 1 and connected to the outer casing 1. The inclined setting can reduce the interference of dust on the suction fans 15 when they are working. The two suction fans 15 are fixed to the inner wall of the side tubes 8 by bolts. After starting, they can suck the surrounding dust into the outer casing 1. The two filter screens 16 are fixed to one end of the side tubes 8 by bolts, which can protect the suction fans 15 and prevent foreign objects from affecting them. The operation of the suction fan 15 causes an impact. The hook and loop side 12 is fixed to the inner top wall of the outer casing 1, and the hook and loop side 13 is adhered to the hook and loop side 12. The hook and loop side 13 is fixed to the outer edge of the opening of the cloth bag 11. This detachable connection method facilitates the installation and replacement of the cloth bag 11. The cloth bag 11 is used to collect the sucked dust. In addition, two tear strips 14 are fixedly provided at the top opening of the cloth bag 11. When it is necessary to remove the cloth bag 11, the tear strips 14 can be used to quickly tear the cloth bag 11 off the hook and loop, further simplifying the operation.

[0026] The beating mechanism includes two pull rods 18, two beating rods 17, two connecting frames 7, two connecting rings 19, and two connecting springs 20. The two connecting frames 7 are U-shaped and are fixed to both sides of the outer casing 1 by bolts. The two pull rods 18 are fixed to one end of the two beating rods 17, and the other ends of the two beating rods 17 slide through the connecting frames 7 and the outer casing 1, respectively, and are fixedly connected to rubber pads. The rubber pads can reduce damage to the cloth bag 11 during beating. The other ends of the two beating rods 17 extend to both sides of the same cloth bag 11. When the operator pulls... When the lever 18 is pulled, the beater 17 moves in the opposite direction to the bag 11 and stretches the connecting spring 20. When released, the connecting spring 20 returns to its original shape and beats the bag 11, causing the dust attached to the bag 11 to fall off. The two connecting rings 19 are fixedly sleeved on the two beaters 17 respectively, and the two connecting springs 20 are sleeved on the two beaters 17 respectively, and abut against the connecting rings 19 and the connecting frame 7 respectively through the spring seats. After beating, the elasticity of the connecting springs 20 will also reset the beater 17, preparing for the next beating.

[0027] This application can be used in the field of dust collection in chemical workshops, or in other fields applicable to this application.

[0028] In another embodiment: Reference Figures 1-4 Dust collection devices for safety assessment in chemical workshops include:

[0029] A connecting ring 3 is fitted on the outer side of the top of the outer casing 1. Threaded holes are opened on the front and rear sides of the connecting ring 3. Fixed posts 4 are threaded to the inner walls of the two threaded holes. One end of the two fixed posts 4 is fixedly connected to a rotating handle, and the other end is tightly attached to the outer side of the outer casing 1. By rotating the rotating handle, the position of the fixed posts 4 can be adjusted, thereby fixing or loosening the connecting ring 3. A collection hopper 5 is fixedly connected to the top of the connecting ring 3. The collection hopper 5 can expand the dust collection range and facilitate dust collection. A filter screen 6 is fixedly installed on the inner wall of the collection hopper 5 by bolts. The filter screen 6 can filter out larger particles of impurities, reduce the burden on the filter bag 11, and extend the service life of the filter bag 11.

[0030] The front of the storage box 9 is fixed with a lid 23 by a retaining ring and a retaining block. A sealing ring is set between the lid 23 and the storage box 9 to ensure the sealing of the storage box 9 and prevent dust leakage. A handle 22 is fixedly connected to the front of the lid 23, which makes it convenient for staff to hold the lid 23 to open and close. A triangular block 21 is fixedly connected to the bottom inner wall of the storage box 9. The triangular block 21 can concentrate the dust falling from the cloth bag 11 to one side of the storage box 9 for easy cleaning later.

[0031] However, as is well known to those skilled in the art, the working principle and wiring method of the suction fan 15 are commonplace and are all conventional methods or common knowledge, so they will not be described in detail here. Those skilled in the art can make any selections according to their needs or convenience. The suction fan 15 is connected to the controller fixedly installed on one side of the storage box 9 through a line and is powered by an external power source.

[0032] The accompanying drawings in this application are for illustrative purposes only. The dimensions and shapes of the components shown are not actual limitations but are merely schematic representations. In actual implementation, the components can be reasonably configured and adjusted according to specific needs and actual conditions.

[0033] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A dust collection device for safety assessment in chemical workshops, characterized in that, The device includes an outer shell (1), with observation windows (2) on both the front and rear sides. A storage box (9) for storing dust is fixedly connected to the bottom of the outer shell (1). A base plate (10) is fixedly connected to the bottom of the storage box (9), and a controller is fixedly connected to one side. Support columns and anti-slip pads are fixedly connected to the four corners of the bottom of the base plate (10). The four edges of the base plate (10) are all arc-shaped. A collection mechanism for collecting dust is provided on the outer shell (1). A beating mechanism for beating the collection mechanism is also provided on the outer shell (1).

2. The dust collection device for safety evaluation of chemical workshops according to claim 1, characterized in that, The collection mechanism includes a hook and loop fastener (13), a loop fastener (12), a cloth bag (11), two side tubes (8), two suction fans (15), and two filter screens (16). The two side tubes (8) are respectively inclined and fixed on both sides of the same outer shell (1) and connected to the outer shell (1). The two suction fans (15) are respectively fixed on the inner wall of the two side tubes (8) by bolts. The two filter screens (16) are respectively fixed on one end of the two side tubes (8) by bolts to protect the suction fans (15). The loop fastener (12) is fixed on the top inner wall of the outer shell (1). The hook and loop fastener (13) is adhered to the loop fastener (12). The hook and loop fastener (13) is fixed on the outer edge of the opening of the cloth bag (11) used for collecting dust.

3. The dust collection device for safety evaluation of chemical workshops according to claim 1, characterized in that, The slapping mechanism includes two pull rods (18), two slapping rods (17), two connecting frames (7), two connecting rings (19), and two connecting springs (20). The two connecting frames (7) are U-shaped and are fixedly installed on both sides of the same outer shell (1). The two pull rods (18) are fixedly installed at one end of the two slapping rods (17). The other end of the two slapping rods (17) slides through the connecting frame (7) and the outer shell (1) and is fixedly connected with a rubber pad. The other end of the two slapping rods (17) extends to both sides of the same cloth bag (11). The two connecting rings (19) are fixedly sleeved on the two slapping rods (17). The two connecting springs (20) are sleeved on the two slapping rods (17) and abut against the connecting rings (19) and the connecting frame (7) respectively through spring seats.

4. The dust collection device for safety evaluation of chemical workshops according to claim 1, characterized in that, A connecting ring (3) is fitted on the top outer side of the outer shell (1). Threaded holes are provided on the front and rear sides of the connecting ring (3). Fixed posts (4) are threadedly connected to the inner walls of the two threaded holes. A rotating handle is fixedly connected to one end of each of the two fixed posts (4), and the other end is tightly attached to the outer side of the outer shell (1). A collection hopper (5) for collecting dust is fixedly connected to the top of the connecting ring (3). A filter screen (6) for reducing the burden on the cloth bag (11) is fixedly installed on the inner wall of the collection hopper (5) by bolts.

5. The dust collection device for safety evaluation of chemical workshops according to claim 1, characterized in that, The front side of the storage box (9) is fixedly provided with a box cover (23) for closing by a snap ring and a snap block. A sealing ring for sealing is provided between the box cover (23) and the storage box (9). A handle (22) for holding is fixedly connected to the front side of the box cover (23). A triangular block (21) for collecting dust falling from the cloth bag (11) is fixedly connected to the bottom inner wall of the storage box (9).

6. The dust collection device for safety evaluation of chemical workshops according to claim 2, characterized in that, Two tear strips (14) are fixedly provided at the top opening of the cloth bag (11) to facilitate the disassembly and assembly of the cloth bag (11).

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